PCB-377C20/426A14

377C20 microphone paired with a 426A14 preamplifier

Nominal Microphone Diameter: 1/2"
Frequency Response Characteristic: Random Incidence
Frequency Range: (±2dB)3.15 to 16000 Hz
Inherent Noise: 14 dB(A) re 20 µPa
Dynamic Range: 146 dB re 20 µPa

Specification Notes

[1] Typical.
[2] re 250 Hz
[1] Typical.
[2] re 250 Hz
[1] Typical.
[3] Prepolarized
[1] Typical.
[4] See PCB Declaration of Conformance PS167 for details.

	English:	SI:
Performance
Nominal Microphone Diameter	1/2"	1/2"
Frequency Response Characteristic	Random Incidence	Random Incidence
Open Circuit Sensitivity (±1.5 dB)	-26 dB re 1 V/Pa	-26 dB re 1 V/Pa	[2]
Open Circuit Sensitivity	50 mV/Pa	50 mV/Pa	[2]
Frequency Range (±2 dB)	3.15 to 16000 Hz	3.15 to 16000 Hz
Frequency Range (±1 dB)	5 to 6300 Hz	5 to 6300 Hz
Lower Limiting Frequency (-3 dB)	1.0 to 2.4 Hz	1.0 to 2.4 Hz
Resonant Frequency (90° Phase Shift)	12000 Hz	12000 Hz	[1]
Inherent Noise	14 dB(A) re 20 µPa	14 dB(A) re 20 µPa	[1]
Dynamic Range (3% Distortion Limit)	146 dB re 20 µPa	146 dB re 20 µPa	[1]
Standards Designation (IEC 61094-4)	WS2D	WS2D
Environmental
Temperature Range (Operating)	-40 to +248 °F	-40 to +120 °C
Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C))	0.005 dB/°F	0.009 dB/°C	[1] [2]
Static Pressure Coefficient	-0.01 dB/kPa	-0.01 dB/kPa	[1] [2]
Humidity Coefficient of Sensitivity (0 to 100%, non-condensing)	±0.001 dB/%RH	±0.001 dB/%RH	[2]
Influence of Axial Vibration (0.1g (1 m/s²))	63 dB re 20 µPa	63 dB re 20 µPa	[1]
Electrical
Capacitance (Polarized)	11 pF	11 pF	[1]
Polarization Voltage	0 V	0 V	[3]
Physical
Housing Material	Stainless Alloy	Stainless Alloy
Venting	Rear	Rear
Mounting Thread	0.4606 - 60 UNS	11.7 mm - 60 UNS
Mounting Thread	0.5 - 60 UNS	12.7 mm - 60 UNS
Size - Diameter (with grid)	0.52 in	13.2 mm
Size - Diameter (without grid)	0.5 in	12.7 mm
Size - Height (with grid)	0.64 in	16.2 mm
Size - Height (without grid)	0.6 in	15.3 mm
Weight	0.28 oz	7.8 gm	[1]